// This event handler for server certificate validation executes synchronously as part of the SSL/TLS handshake.
// An app should not perform lengthy operations inside this handler. Otherwise, the remote server may terminate the connection abruptly.
private async void MyCustomServerCertificateValidator(HttpBaseProtocolFilter sender, HttpServerCustomValidationRequestedEventArgs args)
{
// Get the server certificate and certificate chain from the args parameter.
Certificate serverCert = args.ServerCertificate;
IReadOnlyList <Certificate> serverCertChain = args.ServerIntermediateCertificates;
// To illustrate the use of async APIs, we use the IsCertificateValidAsync method.
// In order to call async APIs in this handler, you must first take a deferral and then
// release it once you are done with the operation. The "using" statement
// ensures that the deferral completes when control leaves the method.
using (Deferral deferral = args.GetDeferral())
{
try
{
bool isCertificateValid = await IsCertificateValidAsync(serverCert);
if (!isCertificateValid)
{
args.Reject();
}
}
catch
{
// If we get an exception from IsCertificateValidAsync, we reject the certificate
// (secure by default).
args.Reject();
}
}
}
// This event handler for server certificate validation executes synchronously as part of the SSL/TLS handshake.
// An app should not perform lengthy operations inside this handler. Otherwise, the remote server may terminate the connection abruptly.
private async void MyCustomServerCertificateValidator(HttpBaseProtocolFilter sender, HttpServerCustomValidationRequestedEventArgs args)
{
// Get the server certificate and certificate chain from the args parameter.
Certificate serverCert = args.ServerCertificate;
IReadOnlyList<Certificate> serverCertChain = args.ServerIntermediateCertificates;
// To illustrate the use of async APIs, we use the IsCertificateValidAsync method.
// In order to call async APIs in this handler, you must first take a deferral and then
// release it once you are done with the operation. The "using" statement
// ensures that the deferral completes when control leaves the method.
using (Deferral deferral = args.GetDeferral())
{
try
{
bool isCertificateValid = await IsCertificateValidAsync(serverCert);
if (!isCertificateValid)
{
args.Reject();
}
}
catch
{
// If we get an exception from IsCertificateValidAsync, we reject the certificate
// (secure by default).
args.Reject();
}
}
}